Remove cake and let cool for 30 minutes. While cake is cooling, prepare the middle layer.

For the middle layer:

1/2 cup butter, softened

1/2 cup vegetable shortening

4 cups powdered sugar

2-3 tablespoons milk

Cream butter and shortening in a large mixing bowl. Gradually add remaining ingredients and beat until mixture is thick, combined, and spreadable. Spread in an even layer on the chocolate cake. Set in the freezer for 15 minutes while you make the chocolate glaze.

For the chocolate glaze:

1/2 cup butter

1/2 cup cocoa powder

2 cups powdered sugar

2-4 tablespoons milk

In a medium size pot, melt the butter over medium heat. Add the cocoa powder and whisk until smooth. Remove from heat and mix in the powdered sugar and milk. Remove cake from freezer and evenly frost with the glaze. Store in the refrigerator.